Russia however has continuously denied responsibility, and even criticised the investigation's findings as being biased and politicised.

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However cyber security experts at Trend Micro - a private company - are now claiming that attackers used a fake server to launch attacks against staff involved in the investigation.

The group linked to the hack attack is Pawn Storm - alleged to have ties with the Russian government.

In a statement, the company said: "These discoveries show that it is very likely that Pawn Storm coordinated attacks against different organizations to get sensitive information on the MH17 plane crash."

Hunting the truth: A military policeman stands guard in the reconstructed MH17 airplane after the presentation of the final report into the crash (Image: Reuters)

Tension: The White House and Russia had a war of words over the report's findings (Image: PA)

Horror: The crash saw 298 people lose their lives in July last year (Image: Reuters)

Since the allegations emerged, the Dutch Safety Board - which handled the investigation due to the large number of victims from the Netherlands - said it was aware that hacking attempts may have been made.

However a spokesman added that there was "no evidence" that the hackers succeeded in stealing information from investigators.

Pawn Storm has previously been linked with hack attacks against the White House, NATO and those opposed to the Russian-supported Syrian regime of Bashar al-Assad.

Investigators are expected to release more information on their findings, but not until 2016.

Vladimir Putin: The Russian president has criticised the findings of the Dutch Safety Board (Image: Getty)

Claudio Villaca-Vanetta, whose husband Glenn Thomas died on board MH17, told BBC Radio 4’s World at One following the release of the Dutch Saftey Board report: "We had some of the answers we were looking for today, but by far not all of them.

"We know there was a missile which is manufactured in Russia only.

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"Of course, this doesn’t tell us who did it, who is accountable for it.